mixter



(No Model.) E. W. MURPHY & W. D. MIXTER.

MOTOR FOR COFFEE ROASTERS.

No. 465,783. Patented Dec. 22, 1891.

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UNITED STATES PATENT OFFICE.

EDWARD WV. MURPHY AND \VILLIAM D. MIXTER, OF ALBERT LEA, MINNE- SOTA, ASSIGNORS OF ONE-THIRD TO ADAM VVEIGAND, OF SAME PLACE.

MOTOR FOR COFFEE-ROASTERS,

SPECIFICATION forming part of Letters Patent No. 465,783, dated December 22, 1891.

Application filed April 3, 1891. Serial No. 387,566. (No model.)

To aZZ whom it may concern.-

Be it known that we, EDWARD W'. MUR- PHY and WILLIAM D. MIXTER, citizens of the United States of America, residing at Albert Lea, in the county of Freeborn and State of Minnesota, have invented certain new and useful Improvements in Motors for Coffee- Roasters; and we do hereby declare the following to be a full, clear, and exact descrip- IO tion of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which I5 form a part of this specification.

This invention relates to certain new and useful improvements in coffee-roasters.

The object of the invention is to provide a spring-motor which is adapted to rotate a coffee-roaster or cylinder; and it consists in the construction and combination of the parts, as will be hereinafter fully set forth, and par ticularly pointed out in the claim.

In the accompanying drawings, forming part of this specification, Figure 1 is a perspective View of a spring-motor constructed in accordance with our invention, the same being shown as applied to a coffee-roaster; and Fig. 2 is a side elevation.

The parts comprising our spring-motor and coffee-roaster are all made of metal.

A refers to the base, which is made up of angle iron, and is provided at one end with a standard a, the upper end of which is recessed to receive one of the journals of the roasting-cylinder. The opposite end of the frame is provided with two upright plates B and B, which are perforatedto provide bearings for the shaft of a spring-motor, the 40 spring thereof being inclosed within a casing C, through which the key-ended main driving-shaft passes. The main driving-shaft D has secured thereto beyond the plate B the spring which is inclosed by the casing O, and 5 the shaft carries the main driving-wheel c and a spring-pawl which engages with the ratchet -wheel. The main drivingwheel meshes with a pinion on the shaft E, adjacent to which is a gear-wheel e, and the end of said shaftE is squared and projects through the support B for engagement with the hub of the cylinder. A transverse shaft F, having near one end a pinion, is also mounted in the uprightsB and B, and is driven by the gear-wheel 6, so as to turn the crown-wheel G,

shaft of which governor is turned by the crown wheel and pinion, and when the motor runs at a high rate of speed the weighted 7o arms will be thrown outwardly and their extended ends, contacting with the periphery of the disk, will retard the movement of the driving mechanism.

What we claim as new, and desire to secure by Letters Patent, is-

Aspring-Inotorhavingadriving-shaft anda driven shaft forturningacylinder, andashaft geared to the driven shaft and provided with a crown-wheel which meshes with a pinion on the vertical governor-shaft, said governorshaft carrying weighted arms with projecting ends which are adapted to engage with the periphery of a fixed disk, so that the speed of the spring-motor will be retarded by 35 the frictional contact of the governor-arms with the periphery of the fixed disk, substantially asset forth.

In testimony whereof we affix our signatures in presence of two witnesses.

EDWARD WV. MURPHY.

WVILLIAM 1). MIXTER.

Nitnesses:

W. O. MITcHnLL,

S. HAMMOND. 

